// Copyright 2019 Google Inc. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/*---
esid: sec-initializedatetimeformat
description: >
    Checks handling of the options argument to the DateTimeFormat constructor.
info: |
    InitializeDateTimeFormat ( dateTimeFormat, locales, options )
    23. Let _opt_.[[FractionalSecondDigits]] be ? GetNumberOption(_options_, `"fractionalSecondDigits"`, 0, 3, 0).
features: [Intl.DateTimeFormat-fractionalSecondDigits]
---*/


function Test() {
    const validOptions = [
      [undefined, undefined],
      [1, 1],
      ["1", 1],
      [2, 2],
      ["2", 2],
      [3, 3],
      ["3", 3],
      [2.9, 2],
      ["2.9", 2],
      [1.00001, 1],
      [{ toString() { return "3"; } }, 3],
    ];
    for (const [fractionalSecondDigits, expected] of validOptions) {
      const dtf = new Intl.DateTimeFormat("en", { fractionalSecondDigits });
      const options = dtf.resolvedOptions();
      assert.sameValue(options.fractionalSecondDigits, expected);
      const propdesc = Object.getOwnPropertyDescriptor(options, "fractionalSecondDigits");
      if (expected === undefined) {
        assert.sameValue(propdesc, undefined);
      } else {
        assert.sameValue(propdesc.value, expected);
      }
    }
}

// preheat
const NUMBER_OF_PREHEAT = 1;
for (let i = 0; i < NUMBER_OF_PREHEAT; i++) {
    Test();
}

ArkTools.jitCompileAsync(Test);
assert.sameValue(ArkTools.waitJitCompileFinish(Test), true, '[JIT] JIT disabled.');

// test
const NUMBER_OF_TEST = 1; // or 2
for (let i = 0; i < NUMBER_OF_PREHEAT; i++) {
    Test();
}
